lasercom.app
Tools for free-space laser communications systems, and the sky they point at.
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The Orrery
The solar system as it is right now, in 3D, from recent earthquakes and satellites in Low Earth Orbit out to the observable universe: planets and moons from JPL, asteroids, spacecraft, satellites, the Sun and space weather, stars, constellations, exoplanet systems; view constellations in 3D as well as how they appear from other star systems.
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Transients
Supernovae, novae, gamma-ray bursts, gravitational-wave events, neutrinos and comets, plus large earthquakes and Earth-impacting space weather, each one shown in the Orrery.
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Laser communications calculators
Starting with the optimum transmit beam waist for a centrally obscured telescope; more to come, from Gaussian beams and fiber coupling to pointing and detectors. Each shows its formulas and sources. Built to work in the field, on a phone.
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Satellite Constellation VisualizerPlanned
Choose planes, inclinations, altitudes and satellites per plane; see the constellation round Earth, with the maximum inter-satellite distance and Doppler shift between planes.
Help shape lasercom.app
This site is new and growing. Tell me what you would like to see: a calculator you need, a correction, an improvement to the Orrery, or anything that doesn't work as it should. Every message is read.
Your message is emailed to the site's owner and kept on the server for a year, with the page you came from. An email address, if you give one, is used only to reply to you. Nothing else about you is kept with it.